RUBIACEAE AAT 
1. D. repens (L.) Forst. 
A prostrate, nearly or quite glabrous, somewhat succulent, slender, 
branched, herbaceous annual, rooting at the nodes. Leaves narrowly 
oblong-obovate to narrowly elliptic, 1 cm long or less. Flowers axillary, 
solitary, sessile, white, about 2 mm long. Capsule ovoid, about 4 mm long. 
In open damp places, roadsides, etc., fl. most of the year; throughout the 
Philippines. India through Malaya to Australia and Polynesia. 
4, OLDENLANDIA Linnaeus 
Slender, erect or spreading, simple, diffusely or dichotomously branched 
herbs. Leaves narrow. Flowers small, white, axillary or terminal, solitary, 
or in few-flowered umbels or cymes. Calyx-teeth 4, rarely 5, usually erect. 
Corolla rotate, funnel- or salver-shaped, the tube long or short, 4- or 5- 
lobed. Ovary 2-celled; ovules numerous. Capsule small, membranaceous 
or chartaceous, loculicidal at the top, terete or angled. (In honor of H. B. 
Oldenland.) 
Species 70 or more, tropical and subtropical, about 8 in the Philippines. 
1. Leaves elliptic-ovate to oblong; calyx-teeth in fruit very small; flowers 
tS allt Ela Mn i qe ta tN ae ON i ob Att eA 1. O. biflora 
1. Leaves linear to linear-oblanceolate or lanceolate; calyx-teeth prominent. 
2. Flowers in axillary, few-flowered umbels........................ 2. O. corymbosa 
2. Flowers axillary, solitary. 
3. Pedicels not or but little longer than the flowers............ 3. O. diffusa 
3. Pedicels much longer than the flowers. 
4, Erect, dichotomously branched, rather rigid; leaves 1 to 3 cm long. 
4. O. herbacea 
4. Weak, ascending, usually unbranched; leaves less than 7 mm long. 
5. O. brachyphylla 
1. 0. biflora L. (O. paniculata L.). 
An annual glabrous herb, branched from the base, 6 to 30 ecm high, 
the branches somewhat angled, ascending. Leaves shortly petioled, elliptic- 
ovate to oblong, acute or obtuse, 1 to 3 cm long, the nerves faint. Cymes 
in the upper axils, 3- to 7-flowered, somewhat panicled, the pedicels slender. 
Calyx green. Corolla white, small. Capsules cup-shaped or ovoid, about 
3 mm long, crowned by the four small calyx-teeth. 
In open waste places, grass lands, ete., possibly introduced, fl. all the 
year; throughout the Philippines. India to China, Malaya, and Polynesia. 
2. O. corymbosa L. 
An erect or spreading, branched, annual herb 20 to 50 cm in length. 
Leaves linear-oblanceolate to linear-oblong, 1.5 to 3 cm long. Flowers in 
axillary, peduncled, 2- to 5-flowered umbels, the peduncles slender, 5 to 
10 mm long, the pedicels half as long or less, some solitary flowers often 
intermixed. Corolla small, white. Capsule turbinate, about 2 mm long, 
not protruded beyond the short acuminate calyx-lobes. 
In open waste places etce., fl. all the year; throughout the Philippines, 
possibly introduced. Most tropical countries. 
3. O. diffusa (Willd.) Roxb. 
A slender, spreading or ascending, glabrous, more or less branched annual 
herb reaching a length of 50 cm or less. Leaves linear, 1 to 3 cm long. 
Flowers axillary, solitary, white, about 3 mm long, the pedicels about as 
